CVE-2024-41949

CVE-2024-41949 is a low-severity vulnerability in Biscuitsec Biscuit-auth with a CVSS 3.x base score of 3.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Description

biscuit-rust is the Rust implementation of Biscuit, an authentication and authorization token for microservices architectures. Third-party blocks can be generated without transferring the whole token to the third-party authority. Instead, a ThirdPartyBlock request can be sent, providing only the necessary info to generate a third-party block and to sign it, which includes the public key of the previous block (used in the signature) and the public keys part of the token symbol table (for public key interning in datalog expressions). A third-part block request forged by a malicious user can trick the third-party authority into generating datalog trusting the wrong keypair.

Frequently asked questions

What is CVE-2024-41949?
biscuit-rust is the Rust implementation of Biscuit, an authentication and authorization token for microservices architectures. Third-party blocks can be generated without transferring the whole token to the third-party authority. Instead, a ThirdPartyBlock request can be sent, providing only the necessary info to generate a third-party block and to sign it, which includes the public key of the previous block (used in the signature) and the public keys part of the token symbol table (for public key interning in datalog expressions). A third-part block request forged by a malicious user can trick the third-party authority into generating datalog trusting the wrong keypair.
How severe is CVE-2024-41949?
CVE-2024-41949 has a CVSS 3.x base score of 3.0, rated low severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2024-41949 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-41949?
CVE-2024-41949 affects Biscuitsec Biscuit-auth. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-41949?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-41949 have an EU (EUVD) identifier?
Yes. CVE-2024-41949 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-2393.
When was CVE-2024-41949 published?
CVE-2024-41949 was published on 2024-08-01 and last updated on 2026-06-17.

References

Affected products (1)

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